Lénárd, AndrásSzitányi, Judit2024-09-042024-09-042018-06-01Teaching Mathematics and Computer Science, Vol. 16 No. 1 (2018) , 25-411589-7389https://hdl.handle.net/2437/379817In the methodology of mathematics teaching, the selection and the manner of using applicable digital teaching materials appeared as a new element. As the number of digital teaching materials applicable in education is constantly increasing, their purposeful use is rarely discussed. In what areas digital teaching materials can be used in mathematics? What are the problems for which they could provide a solution? Shall we use them besides traditional solutions, or instead? The authors of this article have had the opportunity to participate in projects aiming to develop digital learning materials on various occasions. During the implementation of the projects, they needed to make methodological compromises at various points. In our article, we are seeking a more emphatic use of methodology belonging to digital teaching materials, drawing on the experiences of three implemented projects. Our aim is to draw the attention to the anomalies we found in the implementation of the projects, which must be taken into consideration in new developments already at the planning stage.application/pdfdigital teaching materialsdigital teaching unitteaching material developmentteaching development pilotingbasic principles of methodologyfolyóiratcikkOpen AccessAndrás Lénárd and Judit Szitányihttps://doi.org/10.5485/TMCS.2018.0441Teaching Mathematics and Computer Science116Teach. Math. Comp. Sci.2676-8364